hard for me to tell with those photos as I'm colorblind, but it looks like Mg or P. Check pH first, then add complete fert.
No rep needed; sorry it took so long for ya.
Peace
that very well could be im using humboldt nutes and just got a new light thats heating everything up so ive had the fan on alot thanks everyone ALOT . i have here are some photes of the plants im sorry about the lines u know how hps lights go